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Table 3 Clinical characteristics of 187 patients in the ERT and LRT groups after propensity score matching

From: Timing of thoracic radiotherapy in the treatment of extensive-stage small-cell lung cancer: important or not?

  Before matching After matching
ERTa LRTb P ERTc LRTd P
Gender Male 51 95 0.541 44 44 1.000
Female 14 27   12 12
Age, y ≥65 20 30 0.389 19 18 1.000
<65 45 92   37 38
KPS ≥80 62 112 0.548 53 54 1.000
<80 3 10   3 2
Smoking index ≥400 51 95 1.000 45 43 0.818
<400 14 27   11 13
Family history of neoplasm Yes 8 31 0.039 8 9 1.000
No 57 91   48 47
Weight loss Yes 6 19 0.265 6 6 1.000
No 59 103   50 50
PCI Yes 15 10 0.006 7 8 1.000
No 50 112   49 48
Number of metastases ≥2 Yes 11 20 1.000 9 12 0.629
NO 54 102   47 44
  1. a n = 65; b n = 122; c n = 56; d n = 56